This 13 Watt energy saving 2 Pin PLS Compact Fluorescent Lamp featuring a Cool White 4000K colour temperature is an efficient reliable and very energy efficient lighting solution saving up to 80% in energy usage and costs. The 13W output of this 2 Pin G23 Cool White lamp is the equivalent of a 40W incandescent bulb. PLs lamps are very popular lighting sources commonly found in many domestic commercial and creative lighting applications.